47398437 has 12 divisors (see below), whose sum is σ = 69130464. Its totient is φ = 31291560.

The previous prime is 47398433. The next prime is 47398451. The reversal of 47398437 is 73489374.

It is a happy number.

It is not a de Polignac number, because 47398437 - 2² = 47398433 is a prime.

It is a super-2 number, since 2×47398437² = 4493223660085938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47398392 and 47398401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47398433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24639 + ... + 26492.

It is an arithmetic number, because the mean of its divisors is an integer number (5760872).

Almost surely, 2^47398437 is an apocalyptic number.

It is an amenable number.

47398437 is a deficient number, since it is larger than the sum of its proper divisors (21732027).

47398437 is a wasteful number, since it uses less digits than its factorization.

47398437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51240 (or 51237 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 47398437 is about 6884.6522788010. The cubic root of 47398437 is about 361.8995198470.

The spelling of 47398437 in words is "forty-seven million, three hundred ninety-eight thousand, four hundred thirty-seven".